Window ventilator



May 29,1928. TLS'YILZWM E. L. CLARKE [WINDOW VENTILATOR Filed Dec. 50, 19,25

Patented May 29, 1928 UNITED STATES PATENT OFFICE...

EDWARD L. CLARKE, OF SCRANTON, PENNSYLVANIA.

WINDOW VENTILATOB.

Application filed December 30, 1925. Serial No. 78,404.

window ventilator adapted for the upper sash so the sash can be lowered from the top and air passing to the place is diverted towards the ceiling.

The invention pertains particularly to a ventilator which is automatically broughtinto operative-position by the lowering of the upper sash and moved upwardly out of the way when its use is not desired by raising the upper Sash.

Another object of my invention is to provide a ventilator of this character which can be readily attached to any ordinary window without any modification or change thereof, and at the same time producing a very simple, cheap and effective ventilator having certain details, of structure and combination of parts hereinafter more fully described.

In the accompanying drawings Figure 1 is a perspective view of a window frame and sash showing my improved ventilator applied thereto.

Figure 2 is a vertical sectional view of Figure 1, showing the upper sash lowered and .the ventilator in its operative position and showing it in dotted lines when the sash is raised. I

Referring now to the drawings, the numeral 1 represents the frame of a window,-

and 2 the lower sash, and 3 the upper sash, all of which are of the usual construction. Secured to the upper part of the upper sash on the inner face are the two hinges 4 and 5, so constructed as to operatively support the deflecting board or plate 10 carried thereby.

The deflector board has its lower part out at an angle as indicated at 18 and its upper part rounded as indicated at 17 as clearly shown in Figure 2 of the drawings.

The hinge consists of leaf 7 which is-fastened to the upper inner face of the upper sash by means of clamps and set screws and has pivotall connected thereto at 8, the long leaf 9 whic when the window is closed assumes the position shown in dotted lines in Figure 2 of the drawings. Secured to the upper face of these twolong leaves of the two hinges is a metal or wooden plate 10, which is of a width slightly less than the length of the long leaf 9, whereby it is rigidly carried by the leaves and moves therewith as will be later described. The long leaf 9 has pivotally connected at 11 the short leaf 12 and pivotally connected at 13 to the ,short leaf 12 is another leaf 14: which is secured to the inner face 15 of the frame by means of screws or the like. The hinges 4 and 5 as shown in Figure 1 of the drawings, are spaced some distance apart so as to more firmly support the deflecting plate 10.

The several parts when the window is closed assume the position shown in dotted lines in Figure 2 of the drawings. The deflective plate is arranged so that its lower part is comparatively close to the upper edge of the upper sash.. Upon lowering the upper sash the leaf 9 radually moves downwardly in an inclined position carrying with it the short leaf 12 rocking it upon its pivots 11 and 13. By the time the sash has passed from the usual groove 16 in the frame, the deflector plate 10 carried by the links has assumed an inclined position, and air entering above the sash is diverted in an upward direction in the room. The more the window is opened, the morethe link 9 travels down increasing the opening on the outer side between the frame and the lower part of the deflector plate-10, but at all times assumes an inclined position. The continued downward movement brings the leaves 9 and 12 in alinement, and the sash is lowered as far as possible when this ventilator is attached, as the hinges limit the movement thereof. 'In this position, the space between the lower part of the deflector plate 10 and the frame on the outer side'is considerable, and allows a considerable amount of air to' pass into the room, but

owingto the inclination of plate 10 is diverted upwardly towards the ceiling.

By this structure it will be seen that I have produced a very effective ventilator which is wholly automatic and which when the upper sash is closed, folds up within the frame and forms a neat appearance.

It will be understood that hinges can be disconnected from the sash when for any purpose the free movement of the upper sash is desired, and in which event it will hang suspended fro-mthe top of the window frame.

While I have shown and described this I specific construction, it will be understood that slight variations could be made therein without departing from my invention.

Having thus described my invention what I claim is 1. The combination with a window frame and sash,'multiple leaf hinges connecting the sash and frame and a deflector plate carried by the hinges whereby the plate is raised and lowered with the sash, and always assumes an inclined position when the sash is lowered to admit and divert air in an upward-direction over the sash.

2. The combination with a window frame and sash, ofmultiple leaf hinges connecting the upper end of the sash, and the inner face of the frame, anda deflector plate car ried by raised andlowered with the sash and always maintained in an inclined position when the sash is lowered to admit and divert air in an upward direction over the upper sash.

3. The combination witha window frame I and sash, of multi 1e leaf hinges connected the hinges whereby the plate is of the window frame, a deflector plate carried by the leaf next to the leaf connected to the sash, whereby the deflector plate assumes an approximately horizontal position against the frame when the sash is closed, and assumes an oblique position when the-sash is. lowered to admit and divert air in an upward direction over the sash.

5. The combination with a window frame and sash, four leaf hinges having the end leaf of eachf'hinge connected to the upper inner face of the upper sash, the otherend leaf of each hinge connected to the inner vertical face of the window frame, a deflector plate .carried-bythe leaves next to the leaves connected to the sash, whereby the deflector plate' assumes an approximately horizontal position against the-frame when the sash is raised, and assumes an oblique position when the sash is lowered to admit upward direction over and divert air in an the upper sash.

6. The combination with a window frame and. sash; of a deflector plate pivotally connected to the upper edge ofthe sash, and a link pivotally connected to said deflector plate and to the upper end of said window .frame, said link controlling the movement of said deflector'plate' in the movement of said sash.. I

In testimony whereof I have signed this specification. e

' EDWARD L. CLARKE. 

